Home / 155,540.55-233,138.03-66,778.95

Finding the Fourth Proportional to 155,540.55, 233,138.03 and 66,778.95

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Solution

The fourth proportional to 155,540.55, 233,138.03 and 66,778.95 is: 100,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,540.55 : 233,138.03 = 66,778.95 : x
  2. Step 2: Convert to fraction form
    155,540.55/233,138.03 = 66,778.95/x
  3. Step 3: Cross multiply
    155,540.55x = 233,138.03 × 66,778.95
  4. Step 4: Simplify right side
    155,540.55x = 15,568,712,514.57
  5. Step 5: Solve for x
    x = 15,568,712,514.57/155,540.55
  6. Step 6: Final answer
    x = 100,094.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.